<div class="side_widget clearfix">
   <h3 class="headline">标签</h3>
   <div id="tagcloud">
     <#list tags as tag>
       <a style="font-size:${NumberUtils.randomInt(9,20)}pt;" 
            href="${domain}/tags/${tag.name}" title="${tag.count}个话题">${tag.name}</a>
     </#list>
   </div>
</div>